This may be a very silly question, but I am pretty sure nobody has asked this in stackoverflow.
When you build a C++ solution in Visual Studio, there are a couple of solution platforms you can choose, like Win32, X64, mixed platforms. I know that you may choose X64 if you want your program to be run by others in a X64 platform. My question is can you always choose mixed platforms which sounds to have included both Win32 and X64?